Cultivator-tooth.



R. E. MGGULLEY, W. G. REA & D. B. FORWARD.

GULTIVATOR TOOTH.

APPLICATION FILED SEPT. 25,1913.

1,108,600, Patented Aug. 25, 1914.

WITNESSES IN VE NTORS.

f, M CUZZf) THE NORRIS PETERS CO, PHOTO-LITHQ. WASPIING'i'QN. D, C.

UNITED $TATES PATENT OFFIGE.

ROBERT E. MGGULLEY, WALTER G. REA, AND DRYIJEN' BLAIR FORWARD, OF CEDAR-VILLE', CALIFORNIA.

CULTIVATOR-TO 0TH.

Specification of Letters Patent.

Patented Aug. 25, 1914.

Application filed September 25, 1913. Seriai No. 791,772.

To all whom it may concern:

Be it known that we, ROBERT E. MGCUL- LEY, WALTER G. REA, and DRYDEN B.For:- waso, citizens of the United States, and residents of Cedarville,in the county of Modoc and State of California, have invented a new andImproved Cultivator-Tooth, of which the following is a full, clear, andexact description.

This invention relates to agricultural implements and has particularreference to cultivators and diggers.

Among the objects of the invention is to provide a cultivator tooth ofpeculiar construction and adaptation, the same being detachablyconnected to a cultivator post in such a manner as to be capable ofreversal from one end to the other, whereby the emciency of the tooth isincreased.

A further object of the invention is to improve the means for securing adevice of this character adjustably or removably to the cultivator post.

The foregoing and other objects of this invention will hereinafter bemore fully described and claimed and illustrated in the drawings forminga part of this specification in which like characters of referenceindicate corresponding parts in both the views, and in which Figure 1 isa side elevation of the device in working position; and Fig. 2 is atransverse section on the line 22 of Fig. 1.

The several parts of the device may be made of any suitable materials,and the relative sizes and proportions thereof may be varied to aconsiderable extent without departing from the spirit of the inventionhereinafter more fully set forth and specifically claimed. 7

At 10 we show the lower end of a cultivator beam or post having thefront face thereof rounded, as shown at 10, and being provided with abolt hole 11 extending therethrough from front to rear. Indicated at 12is a cultivator tooth, the same being substantially crescent shaped asviewed in side elevation, and having its back provided with a concavity12 adapted to conform to the rounded face 10 of the post whereby theattachment means are made more effective.

The body of the tooth is substantially triangular in cross section, asshown in Fig. 2, being provided along its front with a sharp cuttingedge 13 and being provided at its ends with points 14, the cutting edge13, however, terminating at points remote from the extreme points 14:whereby the tooth points 14 are strengthened and made more durable inpractice. This device is especially adapted for use in loosening up sodbound meadows and the effective point 14: thereof is adapted to operatesufliciently deep to go below the grass roots; hence the cutting of saidroots is effected entirely by the cutting edge 13.

As illustrated, the device is symmetrical and adapted to be reversedfrom one end to the other so that when one end becomes dull or damaged,the tooth may be swung around the point of connection with the post andso secured as to bring the other end into operation.

The back and middle portion of the tooth is provided with a transversesocket 15 which is intersected by a hole 16 drilled from the backtherethrough and preferably slightly beyond, as shown at 16, so as toreceive the fastening bolt 17. The socket 15 is slightly, if any, largerthan the nut 18, and hence prevents rotation of the nut. Uponapplication of a wrench to the head 19 of the bolt it may be so turnedas to securely clamp the tooth 12 in position ready for operation. Inorder to reverse the tooth,

the bolt will be loosened by reverse turning far enough so that theconcave portion of the back will freely pass the convexity of the post.The peculiar form of the tooth, both as'to its crescent shape and itstriangular form in cross section, renders it exceedingly strong inproportion to the mass of material.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent A cultivator tooth of the character set forthsubstantially crescent-shaped in side view, the body p'ertion thereofbeing solid and of an acute triangular form in cross names to thisspecification in the presence 10 section, the acute angle constitutingthe of two subscrlblng Witnesses.

front cutting edge, and the back thereof be- ROBERT E MCOULLEY ingformed with a transverse socket and a VALTER REA 5 bolt hole leadin fromthe rear surface of 7 the tooth into a nd extending beyond said DB1 DENBLAIR FORVVARD' socket substantially as and for the purposes Witnesses:set forth. F. E. BUSH, I

In testimony whereof We have signed our H. L. MERRYFIELR,

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

- Washington, D. G.

